2010-11-03 Richard Guenther <rguenther@suse.de>

	PR middle-end/46251
	* builtins.c (expand_builtin_sincos): Properly build MEM_REFs,
	not INDIRECT_REFs.

	* gcc.dg/pr46251.c: New testcase.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166235 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b092477..6d4d1b5 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-11-03  Richard Guenther  <rguenther@suse.de>
+
+       PR middle-end/46251
+       * builtins.c (expand_builtin_sincos): Properly build MEM_REFs,
+       not INDIRECT_REFs.
+
 2010-11-03  Jakub Jelinek  <jakub@redhat.com>
 
        PR tree-optimization/46107

diff --git a/gcc/builtins.c b/gcc/builtins.c
index 4ff0546..31a869b 100644 (file)
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -2474,6 +2474,7 @@ expand_builtin_sincos (tree exp)
   tree arg, sinp, cosp;
   int result;
   location_t loc = EXPR_LOCATION (exp);
+  tree alias_type, alias_off;
 
   if (!validate_arglist (exp, REAL_TYPE,
                         POINTER_TYPE, POINTER_TYPE, VOID_TYPE))
@@ -2494,8 +2495,12 @@ expand_builtin_sincos (tree exp)
   target2 = gen_reg_rtx (mode);
 
   op0 = expand_normal (arg);
-  op1 = expand_normal (build_fold_indirect_ref_loc (loc, sinp));
-  op2 = expand_normal (build_fold_indirect_ref_loc (loc, cosp));
+  alias_type = build_pointer_type_for_mode (TREE_TYPE (arg), ptr_mode, true);
+  alias_off = build_int_cst (alias_type, 0);
+  op1 = expand_normal (fold_build2_loc (loc, MEM_REF, TREE_TYPE (arg),
+                                       sinp, alias_off));
+  op2 = expand_normal (fold_build2_loc (loc, MEM_REF, TREE_TYPE (arg),
+                                       cosp, alias_off));
 
   /* Compute into target1 and target2.
      Set TARGET to wherever the result comes back.  */

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7af642f..184ebdb 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-11-03  Richard Guenther  <rguenther@suse.de>
+
+       PR middle-end/46251
+       * gcc.dg/pr46251.c: New testcase.
+
 2010-11-03  Jakub Jelinek  <jakub@redhat.com>
 
        PR tree-optimization/46107

diff --git a/gcc/testsuite/gcc.dg/pr46251.c b/gcc/testsuite/gcc.dg/pr46251.c
new file mode 100644 (file)
index 0000000..0eeb29f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr46251.c
@@ -0,0 +1,7 @@
+/* { dg-do compile } */
+/* { dg-options "-ffast-math" } */
+
+void foo (long double *x)
+{
+  __builtin_sincosl (*x, x, x);
+}